Understanding the condition
Nerve sheath tumours arise from tissues associated with a nerve. Common benign types include schwannomas and neurofibromas. Their relationship to the functioning nerve fibres influences the risks and choices of treatment.
What might you notice?
- A lump with tenderness or an electric-shock sensation when touched.
- Tingling, numbness or pain along the course of a nerve.
- Weakness or a change in function in the affected limb.
These symptoms can have more than one cause. A clinical assessment is needed to establish the diagnosis.
Specialist assessment
Clinical examination and imaging, usually MRI with or without ultrasound, help characterise the lesion. Growing or suspicious masses need an appropriate specialist pathway. Biopsy or removal should be planned with the relevant specialist team.
Your treatment options
Not every tumour requires immediate surgery. The discussion may include observation, further investigation or microsurgical removal, depending on symptoms, growth and diagnostic certainty. Potential effects on sensation, strength and pain are considered before treatment.
Common questions
Are all nerve sheath tumours cancerous?
No. Many are benign. A specialist assessment is needed to interpret the clinical features and imaging and identify lesions requiring an urgent pathway.
Can a tumour be removed without damaging the nerve?
Preserving nerve function is a central aim of surgery. The risk varies with the tumour type, location and relationship to the nerve fibres, and is discussed before treatment.
General patient information from London Nerve Injury. Decisions about investigations and treatment require an individual clinical assessment.